The Prasat Muang Sing Historical Park, a former outpost of the Khmer Empire protected by ramparts, undoubtedly served as a trading crossroads. Nowadays, all that remains of it is an extensive series of ruins dating from the 13C. On the left, note the main temple, the Prasat Muang Sing, whose walls made from large blocks of laterite endow it with an imposing appearance. An antechamber opening onto the interior of the building houses a statue of the Bodhisattva Avalokitteshvara.